1426931646 has 24 divisors (see below), whose sum is σ = 3319800840. Its totient is φ = 407694672.

The previous prime is 1426931641. The next prime is 1426931663. The reversal of 1426931646 is 6461396241.

It is a happy number.

It is a super-2 number, since 2×1426931646² = 4072267844712538632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1426931598 and 1426931607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426931641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2426461 + ... + 2427048.

It is an arithmetic number, because the mean of its divisors is an integer number (138325035).

Almost surely, 2^1426931646 is an apocalyptic number.

1426931646 is an abundant number, since it is smaller than the sum of its proper divisors (1892869194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1426931646 is a wasteful number, since it uses less digits than its factorization.

1426931646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853528 (or 4853521 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 1426931646 is about 37774.7487880462. The cubic root of 1426931646 is about 1125.8167950774.

The spelling of 1426931646 in words is "one billion, four hundred twenty-six million, nine hundred thirty-one thousand, six hundred forty-six".